Grain-cleaner



(N0 Model.)

B. HOLT. GRAIN OLBANER.

No. 416,916 Patented Dec. 10, 1889.

UNITED STATES PATENT OF ICE.

BENJAMIN HOLT, OFSTOOKTQN, CALIFORNIA. H

.GRA'lN-CLEAN ERh SPECIFICATION forming part of Letters Patent No. 416,916, dated December 10, 1889.

Application filed August 21, 1889. Serial No. 321,514. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN HOLT, of Stockton, San Joaquin county, State of California, have invented an Improvement in Grain-Cleaners; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to an improved graincleaner which is especially applicable for use upon thrashing-machines, but may also be used for separate and independent cleaners when desired.

It consists, essentially, of a device for producing a shaking motion of the shoes which carry the screens and a means for regulating and adjusting the shake.

Referring to the accompanying drawings for a more complete explanation of my invention,Figure l is an exterior side elevation of the cleaner. Fig. 2 isaplan or top view of the adj ustable pin-plate and the plate upon the top of thevertical shaft to which the pin-plate is attached. Fig. 3 is a longitudinal sectional view of the plates G and J, showing the crank-pin and slots and bolts.

A is the exterior frame of the cleaner, which in the present case is shown as adapted to be carried upon a thrashing-machine, a portion of which is illustrated in Fig. 1, the grain to be cleaned being delivered into the hopper of the cleaner from the elevator B in the usual manner.

O C are the shoes carrying the cleaningscreens. These shoes are suspended in any usual or suitable manner by hangers or supports within the case, and not here shown, so as to be capable of a side shaking motion. This motion is produced by the rotation of the vertical shaft D, which is driven by belts E, passing around the pulley upon said shaft, said belt receiving its power from some other portion of the machine. In the present case I have shown this belt as driven from a pulley F upon the fan-shaft. The vertical shaft D has oval or elongated plates G fixed upon its upper and lower ends, as shown. I'have found that this shaft may be conveniently made by casting it with these plates upon the ends. The shaft turns in the journal-boxes H upon the frame of themachine. The plates G have holes or perforations made in them near each end, as shown plainly in Fig. 2.

J J are similarly-shaped plates, one being adapted to the upper and the other to the lower end'of the shaft D. These platesJ have slots K made in their ends, the outer end of the slots being open, as shown in Fig. 2. The

ened for the purpose of moving the plates,

and afterward tightened, so as to clamp the plates G and J firmly together. The rotation of the shaft then acts upon the crank-pins and gives the opposite side shaking movement to the upper and lower shoes C G, this shake being regulated to any degree of. exactness by simply moving the adjusting-plates J upon the plates G. This adjustment is easily and accurately made at any time and takes but an instant.

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is

An improved grain cleaner comprising a main frame, independent shaking-shoes therein, a vertical shaft having horizontal plates G, formed integral with its upper and lower ends,

with holes formed in said plates near the outer ends, supplemental horizontally arranged plates J, bolted to said plates G and having integral vertical crank-pins and slotted outer ends, bolts and nuts for securing the plates together, whereby they may be adjusted, and independent journal-boxes M, one of which is secured to each shaking-shoe and receives the crank-pin of the adjacent plate J substantially as herein described.

In witness whereof I have hereunto set my hand.

BENJAMIN HOLT.

Witnesses:

. GEO. I-I. COWIE,

ALBERT HEALEY. 

